si5321 Silicon Laboratories, si5321 Datasheet - Page 10

• Manufacturer Part Number: si5321
• Description: Sonet/sdh Precision Clock Multiplier Ic
• Manufacturer: Silicon Laboratories

Si5321
Table 4. AC Characteristics (PLL Performance Characteristics)
(V
10
Wander/Jitter at 800 Hz Bandwidth
(BWSEL[1:0] = 10 and BWBOOST = 0; FXDDELAY = 1)
Jitter Tolerance (see Figure 7)
CLKOUT RMS Jitter Generation
FEC[2:0] = 000
CLKOUT RMS Jitter Generation
FEC[2:0] = 001, 010, 100, 101, 110, 111
CLKOUT Peak-Peak Jitter Generation
FEC[2:0] = 000
CLKOUT Peak-Peak Jitter Generation
FEC[2:0] = 001, 010, 100, 101, 110, 111
Jitter Transfer Bandwidth (see Figure 6)
Wander/Jitter Transfer Peaking
Wander/Jitter at 1600 Hz Bandwidth
(BWSEL[1:0] = 10 and BWBOOST = 1; FXDDELAY = 1)
Jitter Tolerance (see Figure 7)
CLKOUT RMS Jitter Generation
FEC[2:0] = 000
CLKOUT Peak-Peak Jitter Generation
FEC[2:0] = 000
Jitter Transfer Bandwidth (see Figure 6)
Wander/Jitter Transfer Peaking
Notes:
DD33
1. Higher PLL bandwidth settings provide smaller clock output wander with temperature gradient.
2. For reliable device operation, temperature gradients should be limited to 10 °C/min.
3. Telcordia GR-1244-CORE requirements specify maximum phase transient slope during clock rearrangement in terms
= 3.3 V ±5%, TA = –20 to 85 °C)
of nanoseconds per millisecond. The equivalent ps/μs unit is used here since the maximum phase transient magnitude
for the Si5321 (tPT_MTIE) never reaches one nanosecond.
Parameter
J
J
J
J
J
J
Symbol
J
GEN(RMS)
GEN(RMS)
GEN(RMS)
GEN(PP)
GEN(PP)
GEN(PP)
TOL(PP)
F
F
J
J
BW
BW
P
P
Rev. 2.4
12 kHz to 20 MHz
50 kHz to 80 MHz
12 kHz to 20 MHz
50 kHz to 80 MHz
12 kHz to 20 MHz
50 kHz to 80 MHz
12 kHz to 20 MHz
50 kHz to 80 MHz
12 kHz to 20 MHz
50 kHz to 80 MHz
12 kHz to 20 MHz
50 kHz to 80 MHz
Test Condition
BW = 1600 Hz
BW = 800 Hz
f = 1600 Hz
f = 800 Hz
f = 160 Hz
< 1600 Hz
f = 16 Hz
f = 80 Hz
< 800 Hz
f = 8 Hz
1000
Min
100
500
10
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
1600
0.27
0.27
Typ
800
0.9
0.9
7.6
3.6
6.7
3.0
0.0
.80
.25
6.4
3.0
0.0
—
—
—
—
—
—
Max Unit
0.35
0.35
10.0
10.0
0.05
10.0
0.05
1.2
1.2
9.2
1.0
.30
5.0
—
—
—
11
—
—
—
—
—
Hz
dB
Hz
dB
ns
ns
ns
ps
ps
ps
ps
ps
ps
ps
ps
ns
ns
ns
ps
ps
ps
ps